Alccofast (SA) – Tile Adhesive for Stones
Polymer-Modified Tile & Stone Adhesive
Alccofast (SA) is a polymer-modified cement-based tile adhesive for stones, specially formulated for fixing suitable natural stones, large-format tiles and other compatible tile types. It is designed for thin-bed application and provides reliable bonding for demanding stone and tile installation requirements.
As part of the Alccofast tile adhesives range, Alccofast SA provides an application-specific solution for projects where tile and stone adhesive performance, deformability and durable bonding are important. It is suitable for specified interior and exterior wall and floor applications on compatible substrates.
Key Features
- Designed for stones: Specially formulated for suitable natural stone and compatible stone tile applications.
- Tile and stone adhesive: Suitable for selected natural stone, large-format tiles and other compatible tile installations.
- Polymer-modified formulation: Provides enhanced bonding characteristics for demanding tile and stone applications.
- Reliable adhesion: Designed to provide strong bonding between compatible tiles or stones and recommended substrates.
- Highly suitable for large-format applications: Can be considered for suitable large-format tile and stone installations.
- Thin-bed application: Supports controlled adhesive application and efficient installation.
- Slip-resistant performance: Slip is specified at ≤ 0.5 mm.
- Deformable formulation: Classified as S1, with deformability of ≥2.5 mm and <5.0 mm.
- Interior and exterior use: Suitable for specified internal and external wall and floor applications.
- Multiple compatible substrates: Suitable for cement-based and selected board substrates as specified.
Technical Classification
IS 15477:2019
Type 3/4T, S1
EN 12004-1:2017
C2T S1
Technical Performance as per IS 15477
Tensile Adhesion – Dry
≥ 1.50 N/mm²
Tensile Adhesion – Heat Ageing
Tensile Adhesion – Wet
Shear Adhesion – Dry
Shear Adhesion – Heat Ageing
Shear Adhesion – Wet
Open Time
Adjustment Time
Slip
Deformability
Recommended Bed Thickness
Approx. Coverage
Coverage
Alccofast SA provides an approximate coverage of 2.5–3 sq. ft./kg at a 3 mm bed thickness.
Actual coverage can vary based on:
- Tile or stone dimensions
- Back profile of the tile/stone
- Substrate evenness
- Trowel size
- Adhesive bed thickness
- Application technique
- Substrate condition
For large-format stone and tile projects, actual site consumption should be evaluated before final material estimation.
Recommended Substrates
Alccofast SA is suitable for compatible
-
Cement plaster -
Properly prepared cement plaster surfaces suitable for tile and stone installation. -
Cement concrete -
Sound and adequately prepared concrete substrates. -
Cement screed -
Compatible cement screed surfaces prepared for adhesive application. -
Gypsum board -
Suitable gypsum board surfaces where compatible with the application. -
Plywood -
Compatible plywood substrates prepared according to installation requirements. -
Calcium silicate board -
Suitable prepared board surfaces. -
Medium-density fibre board -
Compatible MDF substrates where specified. -
Fibre cement board -
Suitable fibre cement board applications. -
Cement board -
Compatible cement board substrates. -
Bison panels -
Suitable prepared Bison panel applications.
Substrate compatibility should always be confirmed before installation, and the surface must be clean, sound and properly prepared.
How to Apply Alccofast SA
Prepare the Substrate
The substrate should be sound, clean and free from dust, dirt, oil, grease, loose particles and other contaminants. Any weak or damaged areas should be repaired before application.
Prepare the Adhesive
Mix Alccofast SA with the recommended quantity of clean water according to the product's technical instructions.
Achieve a Homogeneous Mix
Mix thoroughly until a uniform, lump-free consistency is achieved. Allow the mixture to stand for the recommended period where specified and remix before use.
Apply with a Notched Trowel
Spread the adhesive evenly over the prepared substrate using an appropriate notched trowel to achieve the required adhesive-bed thickness.
Fix the Tile or Stone
Place the compatible tile or stone onto the adhesive within the specified open time. Press adequately to achieve proper contact and coverage.
Make Necessary Adjustments
Position and adjust the tile or stone within the specified adjustment time.
Allow Proper Setting
Allow the adhesive to set according to the product recommendations before proceeding with grouting or subsequent installation work.
Why Choose Alccofast SA?
- Reliable Bonding for Stones - Natural stone installations require an adhesive suitable for the characteristics of the stone and substrate. Alccofast SA provides an application-focused tile and stone adhesive solution for compatible stone installations.
- Polymer-Modified Performance - Its polymer-modified formulation is designed to provide enhanced adhesion and suitable deformability for specified tile and stone applications.
- Suitable for Large-Format Tiles - Large-format tiles and stones can place greater demands on the adhesive system. Alccofast SA is designed for suitable large-format applications where reliable bonding and deformability are important.
- S1 Deformability - Alccofast SA is classified as S1, with deformability of ≥2.5 mm and <5.0 mm, providing a degree of flexibility for suitable applications.
- Thin-Bed Application - The product is designed for thin-bed installation, supporting controlled adhesive application and efficient material usage.
- Interior & Exterior Versatility - Its specified application range covers suitable interior and exterior wall and floor installations, allowing it to be considered for different construction and renovation requirements.
Alccofast SA for Stone Installation
When selecting tile adhesives for stones, the adhesive should be evaluated based on:
- Type of stone
- Stone size
- Stone weight
- Substrate
- Interior or exterior application
- Moisture exposure
- Required deformability
- Installation method
Alccofast SA is designed to provide a suitable polymer-modified adhesive solution for compatible stone applications where reliable bonding and controlled deformability are required.
Alccofast SA for Large-Format Tiles
Large-format tiles can require careful consideration of substrate flatness, adhesive coverage and adhesive performance.
Alccofast SA is suitable for specified large-format tile applications and provides a tile and stone adhesive solution designed for thin-bed installation.
For large-format installations, proper substrate preparation and adequate adhesive coverage are essential for achieving the intended installation performance.
Alccofast SA for Exterior Tile & Stone Applications
For projects requiring a tile adhesive for exterior tiles, adhesive selection should consider environmental exposure and substrate conditions.
Alccofast SA is suitable for specified exterior wall and floor applications. Before installation, ensure that:
- The substrate is structurally sound.
- The surface is properly prepared.
- The selected tile or stone is compatible.
- The adhesive is applied at the recommended thickness.
- Proper adhesive coverage is achieved.
- The recommended installation procedure is followed.
Important: Application should always follow the latest Alccofast SA technical documentation and project-specific requirements.
Suitable Tile & Stone Applications
Alccofast SA is specifically designed for tile adhesives for stones and suitable compatible tile applications.
Natural Stones
The product is formulated for suitable natural stone applications where reliable adhesion and controlled installation are required.
Large-Format Tiles
Alccofast SA can be considered for compatible large-format tile installations where the adhesive needs to accommodate the requirements of larger tile formats.
Ceramic Tiles
The product can be used for specified compatible ceramic tile applications according to the product’s technical requirements.
Vitrified Tiles
Alccofast SA can be considered for suitable vitrified tile applications where the tile and substrate meet the product requirements.
Porcelain Tiles
The product is also suitable for specified porcelain tile applications on compatible substrates.
Clay Tiles
Suitable clay tile applications can also be considered where the product specifications and installation conditions are appropriate.
Interior & Exterior Tile Applications
Alccofast SA is designed for specified:
Suitable for compatible natural stone and tile wall installations where reliable bonding is required.
Can be considered for suitable stone, large-format tile and compatible flooring applications.
Suitable for specified exterior wall applications where the substrate, tile/stone and environmental conditions meet the product requirements.
Can be used for suitable exterior flooring applications according to the technical recommendations.
When selecting a tile adhesive for exterior tiles, factors such as moisture, temperature variation, substrate movement, tile size and exposure conditions should be evaluated.
Frequently Asked Questions
What is Alccofast SA?
Alccofast SA is a polymer-modified cement-based tile adhesive for stones, designed for suitable natural stone, large-format tile and other compatible tile applications.
What is Alccofast SA used for?
Alccofast SA is used for suitable natural stone, large-format tile, ceramic, vitrified, porcelain and clay tile applications on compatible substrates.
Is Alccofast SA suitable for natural stone?
Yes. Alccofast SA is specifically positioned for suitable tile adhesives for stones and natural stone applications.
Can Alccofast SA be used for large-format tiles?
Yes. Alccofast SA is designed for suitable large-format tile and stone applications where reliable bonding and deformability are required.
Can Alccofast SA be used for exterior tiles?
Alccofast SA is suitable for specified exterior wall and floor applications, subject to compatibility between the tile/stone, substrate and project conditions.
What substrates are suitable for Alccofast SA?
The product can be used on suitable cement plaster, cement concrete, cement screed, gypsum board, plywood, calcium silicate board, MDF, fibre cement board, cement board and Bison panels, subject to application requirements.
What is the coverage of Alccofast SA?
The approximate coverage is 2.5–3 sq. ft./kg at a 3 mm bed thickness. Actual coverage depends on substrate condition, tile or stone size, adhesive thickness and application technique.
What is the classification of Alccofast SA?
Alccofast SA is classified as Type 3/4T, S1 under IS 15477:2019 and C2TS1 under EN 12004-1:2017.
What does S1 mean for Alccofast SA?
S1 indicates a deformable adhesive classification. Alccofast SA has a specified deformability of ≥2.5 mm and <5.0 mm according to the supplied technical information.
Choose Alccofast SA for Tile & Stone Installation
For projects requiring reliable tile adhesives for stones, Alccofast SA provides a polymer-modified, deformable solution designed for suitable natural stone, large-format tile and compatible tile applications.
Its reliable adhesion, thin-bed application, S1 deformability and suitability for specified interior and exterior applications make Alccofast SA a suitable choice for demanding tile and stone installation requirements.
Looking for a reliable tile and stone adhesive? Talk to Alccotech for product and application guidance.



